1. A 12 volt lithium battery weighs 1000 to 1200 grams at 20 amp hours.
2. Lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and uses non-aqueous electrolyte solution. It is different from rechargeable batteries, lithium-ion batteries and lithium-ion. polymer batteries. The inventor of lithium batteries is Edison. Since the chemical properties of lithium metal are very active, the processing, storage and use of lithium metal are subject to very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of microelectronic technology in the late 20th century, the number of miniaturized devices has increased day by day, placing high demands on power supplies. Lithium batteries then entered the pr use phaseatic on a large scale.
3. Lithium battery refers to a battery containing lithium (including lithium metal, lithium alloy, lithium ion and lithium polymer) in the electrochemical system. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium metal batteries are generally non-rechargeable and contain lithium in metallic form. Lithium-ion batteries do not contain metallic lithium and are rechargeable.
The 12v-50ah lithium battery represents: the battery works at 50A current on a device with a voltage of 12V and can work for 1 hour.
Ampere-hours (AH) represent the size of the battery capacity. For batteries of the same voltage, the one with the greater amp-hour has a greater capacity; for batteries with the same amp-hour, the one withthe higher voltage has greater capacity. Battery capacity is usually expressed in terms of voltage and amp hours. hours.
Detailed information:
Lithium battery characteristics:
1. High energy density
The weight of lithium-ion batteries is half that of nickel-cadmium or nickel-hydrogen batteries of the same capacity, and the volume is 20-30% nickel- cadmium and 35 -50% nickel-hydrogen.
2. High voltage
The operating voltage of a lithium-ion battery cell is 3.7 V (on average), which is equivalent to three connected nickel-cadmium or nickel-metal hydride batteries. serial.
3. Pollution-free
Lithium-ion batteries do not contain harmful metal substances such as cadmium, lead and mercury.
4. Does not contain lithium metal
Lithium-ion batteries do not containThey do not contain lithium metal, so they are not restricted by air transport regulations such as the ban on carrying lithium batteries on board passengers. plane.
5. High service life
Under normal conditions, the charge and discharge cycles of lithium-ion batteries can exceed 500 times, and lithium iron phosphate (hereinafter referred to as iron phosphate) can reach 2,000 second rate.
6. No memory effect
The memory effect refers to the phenomenon that the battery capacity decreases during the charge and discharge cycle of nickel-cadmium batteries. This effect does not exist with lithium-ion batteries.
7. Fast charging
Using a constant current and constant voltage charger with a rated voltage of 4.2V, the lithium-ion battery can be fully charged in 1.5-2.5 hours; and the new lithium iron phosphate battery can be comfully charged in 35 minutes.
Baidu Encyclopedia-Lithium Battery